﻿<html lang="en">
<head>
    <meta charset="utf-8">
    <title>学会学导航示例</title>
    <style type="text/css">
        * {
        margin: 0;
        padding: 0;
        color: black;  
        text-decoration: none;}
        .header {
       width: 100%;
        height: 50px;
        background: #FFFFFF;
        box-shadow: 0 2px 7px rgba(31, 39, 48, 0.51);
   }
        .logo {
       float: left;
       width: 91px;
       height: 40px;
       padding: 10px 0 0 20px;
  }
        .right {
         float: right;
        height: 100%;
  }
        ul {
       width: auto;
       height: 100%;
      display: block;
      list-style: none;
  }
        ul li {
        float: left;
        width: auto;
        height: auto;
        padding: 0 15px;
 }
        ul li a {
       padding-bottom: 10px;
       line-height: 50px;}
       ul li a:hover {
       border-bottom: 4px solid #1daeff;
 }
        ul li a img {
       width: 30px;
       height: 30px;
       border-radius: 20px;
      border: 1px solid #A7AEB5;
 }
        .mid { 
         width: auto;

      height: 50px;
 }
    </style>
</head>
<body>
<div class="header">
    <div class="logo">
        <img alt="logo" src="img/study_logo.png"/>
    </div>
    <div class="right">
        <ul>
            <li><a href="#">微信</a></li>
            <li><a href="#">帮助</a></li>
            <li><a href="#"><img alt="avatar" src="img/study_avatar.jpg"></a></li>
        </ul>
    </div>
    <div class="mid">
        <ul>
            <li><a href="#">首页</a></li>
            <li><a href="#">课堂教学</a></li>
            <li><a href="#">教学备课</a></li>
            <li><a href="#">教学资源</a></li>
            <li><a href="#">作业信息</a></li>
        </ul>
    </div>
</div>
</body>
</html>
